Xia, Y.; Hrnjak, P.S.; Jacobi, A.M.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2006-12)

The thermal-hydraulic behavior of folded-louvered-fin, microchannel heat exchangers is explored under
conditions of air-side frosting, defrosting, and refrosting. The temperature distribution within a two-dimensional
composite ...

Non-metallic, flexible, thin, microchannel heat exchangers made from heat-sealable polyimide films have
recently been developed for refrigeration and air-conditioning applications. In order for these heat exchangers ...

Kulkarni, T.; Bullard, C.W.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2003-02)

The present work is based on theoretical and computational investigations into microchannel heat
exchangers. Microchannel heat exchangers have long been used as condensers but concerns regarding refrigerant
maldistribution ...

Pira, J.V.; Bullard, C.W.; Jacobi, A.M.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2000-08)

This report describes analyses aimed at integrating component optimization and
system design by developing heat-exchanger performance evaluation criteria (PEC) that
account for the system-level performance impacts of ...

Monroe, C.A.; Newell, T.A.; Chato, J.C.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2003-04)

Pressure drop and heat transfer measurements were taken for smooth and internally enhanced aluminum
microchannels using pure R134a. Adiabatic, evaporation, and condensation tests were conducted in the
horizontally-oriented ...

Goslovich, K.S.; Bullard, C.W.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 1995-05)

The goal of this study was to determine whether extruded aluminum tubing could be used
in the manufacture of a condenser and evaporator for a domestic refrigerator that would be
competitive with conventional technology. ...

Reeves, R.N.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 1992-01)

This paper examines a set of simple equations describing a domestic refrigerator/freezer
system and suggests several modeling improvements, based on experimental results. The
experimental setup is described and limitations ...

Liu, X.; Bullard, C.W.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2002-03)

A general framework is proposed for simulating complex heat exchanger geometries in a manner suitable
for sequential solution of the refrigerant- and air-side equations for mass, momentum and energy. The sequential
solution ...

Sommers, A.D.; Jacobi, A.M.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2007-08)

A method is described for fabricating controlled micro-scale, topographical features on aluminum surfaces
for the purpose of exploiting those features to affect the surface wettability. Using a photolithographic approach, ...

Sommers, A.D.; Jacobi, A.M.(Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2003-12)

Longitudinal vortex generation is a technique for enhancing heat transfer and can be accomplished by
placing small flow manipulators on the fin surface of a heat exchanger. This technique is of particular benefit ...